At each step in the procedure, the patient informs the examiner what is being felt and whether radicular pain is produced. The Slump test is really a variant of the SLR and the Lasègue's tests performed in the seated position and is a progressive series of maneuvers designed to place the sciatic nerve roots under increasing tension. More sensitive test, like the Slump, might be used in herniations in which the SLR is negative. The Straight Leg Raising (SLR) test has been used as the primary test to diagnosis lumbar disc herniations and found to have high correlation with findings on operation since its sensitivity is high in only disc herniations leading to root compression that may eventually need operation. Lumbar disc herniation is 1 disease that physical examination, symptoms, and findings on imaging technique do not always correlate with each other. The examiner must aim to determine the exact tissue that pain arises from to make the specific diagnosis. The physical examination is the most useful tool to diagnosis. An accurate and specific diagnosis prevents the recurrences of low back pain and chronic spinal pain.
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